A Genome-Wide Association Study (GWAS) is a research method used to identify genetic variations linked to specific traits or diseases. By analyzing the genomes of many individuals, researchers can find common genetic markers that may contribute to conditions like diabetes or heart disease. This approach helps in understanding the genetic basis of complex traits. GWAS typically involves comparing the DNA of individuals with a particular condition to those without it. The goal is to pinpoint single nucleotide polymorphisms (SNPs) that are more frequent in one group. This information can lead to better prevention, diagnosis, and treatment strategies for various health issues.